tigefa Redmine

Fixes Mantis importer broken by 2670.

Merged r2705 from trunk (#3291).

Fixed Trac importer broken by r2670 (#3254).

Added the ability to copy a project in the Project Administration panel.

* Added Copy project button.
* Added Project#copy_from to duplicate a project to be modified and saved by the user
* Added a ProjectsController#copy based off the add method
** Used Project#copy_from to create a duplicate project in memory
* Implemented Project#copy to copy data for a project from another and save it.
** Members
** Project level queries
** Project custom fields
* Added a plugin hook for Project#copy.

#1125 #1556 #886 #309

Changes to project members and user projects forms UI.

Fixes controllers and views.

Initial commit for multiple roles.

Multiple roles branch added.

Adds hostname to Redmine links in atom feeds (#3275).

Fixes user edit urls (#3281).